I'm trying to make a program who increments the value of all cells of an array but when i try to compile i get this error message:
Quote
error: incompatible types when assigning to type "int[9]" from type "int *"
how to compare two "cells" in a 2 dimensional array. Im almost sure it's something with in my logic when checking the cells.
#include<iomanip>
#include<iostream>
using namespace std;
int main()
{//variables
int row_count(0);
[code].....
Code:
char *ptr;
printf("Output: %d %d %d
",sizeof(ptr), ptr, ptr+1);
Output: 4 214734480 214734481
int *ptr;
printf("Output: %d %d %d
",sizeof(ptr), ptr, ptr+1);
Output: 4 214734480 214734484 when size of the pointer is the same "4 bytes" whether its a char pointer or a int pointer, but why a char pointer increments 1 where as int pointer increments 4.
The question is Create a counting program that counts backward from 100 to 1 in increments of 10.
#include <iostream>
using namespace std;
int main() {
int num = 1;
while (num<100) {
[Code] ....
It seems there are some errors.
The best I could come up with is this.
while(true){
wisdomCnt++;
_stprintf_s(szBuffer, _T("%i"), wisdomCnt/10000);
TextOut(hdc,120,10,szBuffer, _tcslen(space));
}
but the program is constantly loading and clicking anywhere causes it to stop responding. Is there a better way to do this especially in Win32 API?
I have a problem requiring me to :
enter loan amount:
Enter interest rate:
Enter length of loan (years)
It wants me to input the minimum amount for the loan, and the minimum interest rate. and then output a table that has 5 loan amounts across the top in $10000 increments and 4 interest rates along the side in .25% increments.
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main () {
double loan, interest, length, payment,ti;
//Enter loan price
[Code] .....
For this program i had to create an HTML with the cosine similarities. I got everything, i just need to color in the lowest and highest amount in the table, but I don't know how.
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <string>
#include <cstdio>
using namespace std;
const int ARRAY_OF_ASCII_CODES_SIZE=256;
const int NUMBER_OF_FILES=8;
[Code] .....
how to extract certain cells for an excel file that is continuously updating. I had a look at [URL] since they provide a .h library that is useful for this situation, but could not find any code.
View 7 Replies View RelatedI am trying to draw a 2d grid array for a battleships game. I need the grid to have a border around each cell, how to do this. so far my code is:
#include<iostream>
using namespace std;
int main(){
int grid[5][5] = {{0}};
[Code] .....
As you can see, the code below calculates the average, sum, number of items, etc, for a list of numbers in two separate files and compares them with one another.
e.g. we will have a text file of 10 numbers;
45
65
24
26
26
36
35
100
109
433
etc...
The problem is that the code will perform calculations on all the numbers in the txt. or csv. file. This is problematic because if there is any text in the file, e.g. headings, then the calculations will not be performed. For instance, suppose that I only wanted to include rows 5-10 in the calculations, how would I specify this in my C++ code?
#include <iostream>
#include <cmath>
#include <math.h>
[Code]....
I am trying solve this a problem: [URL] .....
In short:
1. Input is an N x N grid with a non-negative integer in each cell.
2. We can move from one cell to any of its adjacent cell in all four directions.
3. The 'cost' needed to move from one cell to another is the positive difference of their values.
4. We have to find the minimum cost such that we can visit atleast half of the cells with that cost;
I am not being able to think of any solution that runs in time O(N2) or better (N2 because of the size of N, any algorithm worse than it will not run within the time limit) for this problem.
So I need a hint on how to solve this problem optimally.
What I am trying to do is to have the program create 2D array that for each row, no two numbers are the same and only consists numbers between 1-9. The array lists out every possible combinations. Supposely I do not know the number of possible combinations, I had it keep adding new rows until there are no more possiblities left.
The problem with my code is when I print out the completed array, it gives out really, really large numbers. But when I print the array from inside the first loop, it gives correct values. I do not know exactly what happened.
Code:
#include <stdio.h>
int main(void) {
int double_digit[1][2];
int a = 1;
int b = 1;
[Code] ....
Here's the question: Create a program that accepts an array of characters. And displays the converted array of characters into Upper case if it is given in Lowercase and vice versa. Don't use string, but char.
Example: mychar ="I am A conQUeror."
Code: //My Codes:
#include <iostream>
#include <conio.h>
using namespace std;
int main()
[Code] ....
this program is just to give the size and value of the array by the user.
Code:
#include <stdio.h>
main( ) {
int size ;
scanf ( "%d", &size ) ;
int arr[size] ;
for ( i = 1 ; i <= size ; i++ ) {
scanf ( "%d", arr[i] ) ;
printf ( "%d", arr[i] ) ;
}
error : Code:
C:UsersDocumentsprog est.c:7: parse error before `int'
I'm attempting to write a program that displays an array of labels; however, I can't seen to make the labels appear in the form. I've set some of the properties, but still not luck.
Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
[Code]...
Code:
#include <stdio.h>
void Swap(int *x, int *y);
int *Largest(int *array, int size);
int main()
{
int a, b, i;
int c[10];
int maxaddress;
}
[code]...
My swap function works fine, but I am trying to find the ADDRESS of the largest element in my array and I am getting an error using gcc on my "return &largest;" and my printf line in my main function.How can I fix this and return the address of the largest?
This code is not computing the averages.. I am trying to add up all the values in the array and divide them by the number of addresses in the array
Here is the snippet of what I have do far :
//Run through all possible train combinations
Code] :
for(tl=10; tl<=max_tl; tl+=8) {
n_cars++;
num_trains=(.25*max_track)/tl;
num_people=n_cars*num_trains*4;
[Code] ....
The program will grade a series of exams and then print a grade report for students in a course.
Input: An instructor has a class of students each of whom takes a multiple-choice exam with 10 questions. For each student in the class, there is one line in the input file. The line contains the answers that student gave for the exam. The input file named "grade_data.txt" will have the following format:
line 1: the key for the exam (e.g.)
bccbbadbca
lines 2-n:
a set of answers. You know you are done when you get to a line with no data.
Note: You will not know in advance how many exams you have to grade and you don't need to store the exam answers in your program.
Processing: The program is to read the input file and grade each exam and print out the score for that exam. You will also keep track of how many students earned each score (0-10) and print a report after the grading.
Output: Here is an example of how the output might appear. You will write the report to an output file named "grade_report.txt"
Student 1 - 8
Student 2 - 10
Student 3 - 1
etc.
Final Report
------------
10 - 4
9 - 2
8 - 3
.
.
1 - 3
0 - 0
high score - 10
low score - 1
mean score - 6.25
What I am having trouble with is the second part of the program. I have already figured out each grade for each student. The part I am having trouble with is updating the array every time that it gives me a student score so that I know how many people made a 10, how many made a 9, etc.
Iam new to c++ and i want to write a program to generate an integer array. I keep getting the error at line 25: invalid types 'int[int]' for array .
int main() {
int rows;
int cols;
cin>>rows>>cols;
int test[rows][cols];
[Code] .....
I am trying to read from a file the names, id numbers, and 4 grades of 5 stduents. Here is the code:
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
const int GRADES = 4;
const int STUDENTS = 5;
struct StudentInfo {
[Code] .....
Here is the txt file:
Amy Adams
10111
97 86 78 95
Ben Barr
20222
89 81 73 87
Carla Carr
30333
79 71 63 77
Don Davis
40444
69 62 58 67
Edna Eaton
50555
63 51 62 48
When I run the program this is the output:
Amy Adams
10111
97
86
78
95
-842150451
-6.27744e+066
-6.27744e+066
-6.27744e+066
-6.27744e+066
and so on .....
Press any key to continue . . .
As you can see the program is reading the first students information and outputting that fine, but the rest of the students have bad values for output. I'm guessing it's something to do with the pointer, but I really can't figure it out, why it won't read all of the students info?
So I am currently working on a program that will remove elements from an array. Suppose I had a 3x3 Array
1 2 3
4 5 6
7 8 9
and chose the element 5 as the one I wanted to remove. How would I do that? This is where I am so far.
#include <iostream>
#include <stdlib.h>
#include <cmath>
#include <time.h>
#include <algorithm>
#include <vector>
using namespace std;
[Code]...
I have written a program that will input a text file named "inarray.cpp", which contains 10 numbers each separated by a comma, into an array and display the majority on the screen. I am having trouble reading the file in the correct way. For example the numbers have to be on their own separate lines with no commas for my program to work.
ie...
I need to read in 1,2,3,4,5...
but instead i am reading 1
2
3
4
.
.
.
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
[Code]......
This is in c. Write a program which asks for X numbers, and stores them in an array.
The program then asks the user to enter a number to look for, and tells the user how many times that number appears in the array of numbers (if any), and the array index which contain the number
Make an array of the indexes where the number was found, and then format your output to match my output.
Sample Run:
How many numbers would you like to enter: 5
Please enter a number:1
Please enter a number:2
Please enter a number:3
Please enter a number:4
Please enter a number:2
The numbers you enter were: 1, 2, 3, 4, 2
Please enter a number to find: 2
The number appears 2 times, at array ellements with indexes 1, 4
Press any key to continue . . .
I am attempting to write a simple program and compile it onto a 3pi robot. My problem lies with my array, i need the array to increment by one every time through and whenever i run the code the print out reads "ROOM 0" every time.
#include <pololu/3pi.h> /* allow use of 3pi robot functions */
#include <avr/pgmspace.h> /* allow use of program space */
#include <stdio.h> /* for printf() */
#define NUM_ROOMS 11 /* the number of study rooms */
/* function prototype for battery check */
void bat_check( void );
[code].....
# include <stdio.h>;
int main (void){
float judges[6];
int degree;
[Code].....
I will make a program to read the image in C++. And later, the image will represent by array 3D, which (x,y) represent the spatial coordinate of (height*weight) image (pixel) and z represent the intesity of those image (0-255).
In matlab, the code for do that is --> imread('image.jpg')
How can I do that in C++?